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A real-world winter range test of a 2021 Tesla Model Y resulted in 253 miles of driving on a single charge, achieving an 82.67% efficiency rating in 36°F average temperatures. This practical test, conducted on a mixed route of city and highway driving, provides a realistic benchmark for EV owners concerned about cold-weather performance.
Cold temperatures are a well-documented enemy of electric vehicle (EV) range. Battery chemistry is less efficient in the cold, and energy is diverted to heat the cabin and battery pack. For this test, we aimed to see how a two-year-old Tesla Model Y Long Range with over 21,000 miles would perform under typical winter conditions in the Chicago area. The vehicle's displayed range at a 100% state of charge was 311 miles.
To simulate how a conscientious owner would drive to maximize distance, we established specific parameters:
The drive concluded after 252.76 miles with just 2% battery remaining, necessitating a stop at a Supercharger. The key data points from our tracking app were:
Despite not completing the full 260-mile planned route, the result is impressive given the conditions. Efficiency on individual segments of the trip reached as high as 101%, particularly during slower, suburban driving. The highway segments, where higher speeds significantly impact aerodynamics and energy use, were the primary factor in reducing the overall average efficiency.
This test reinforces several best practices for EV owners, especially in cold climates:
For any EV driver, the most important takeaways are to precondition the battery when plugged in, use the vehicle's trip planner for long journeys, and understand that conservative driving habits significantly preserve range in adverse conditions.









